Dan Gohman
7f0d69555c
Fast ISel trivially coalesces away no-op casts, so check for this when
...
setting kill flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:53:18 +00:00
Jakob Stoklund Olesen
6a6328ba3d
Don't bother spilling before a return
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:40:43 +00:00
Jakob Stoklund Olesen
ab2d00863f
RegAllocLocal can count copies too
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:40:40 +00:00
Bill Wendling
23ead99283
SystemZ really does mean "has calls" and not just "adjusts stack." Go ahead and
...
replace the check with the appropriate predicate. Modify the testcase to reflect
the correct code. (It should be saving callee-saved registers on the stack
allocated by the calling fuction.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:17:42 +00:00
Jakob Stoklund Olesen
efa155fd6e
Track allocatable instead of reserved regs, and never take an unallocatable hint.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103828 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:02:56 +00:00
Dan Gohman
8b3a8f5773
Don't set kill flags for instructions which the scheduler has cloned.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103827 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:01:14 +00:00
Dan Gohman
4ee637c730
BR is a barrier.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 22:00:27 +00:00
Bill Wendling
f84d60b649
Several tail call tests apparently rely upon this being "adjusts stack" instead
...
of "has calls". That's probably wrong, but it needs further
investigation. Revert to the original behavior until this is settled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103824 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:58:35 +00:00
Jakob Stoklund Olesen
e97dda4fc5
Avoid scanning the long tail of physreg operands on calls
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103823 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:55:52 +00:00
Devang Patel
26c6995654
Do not forget to mark prcessed arguments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103822 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:55:50 +00:00
Jakob Stoklund Olesen
8a65c510a4
Count coalesced copies
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103821 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:55:50 +00:00
Jakob Stoklund Olesen
a0e618de5d
Allow virtreg redefines when verifying for RegAllocFast
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:55:44 +00:00
Bill Wendling
55ed945bfd
This should happen if there are no calls, not if it just doesn't adjust the
...
stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:38:44 +00:00
Bill Wendling
0fc546b053
Revert r103804. The comment is correct.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103808 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:28:24 +00:00
Jim Grosbach
01384ef159
Remove trailing whitespace
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:20:46 +00:00
Jim Grosbach
9001303a3f
80 column and trailing whitespace cleanup
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103806 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:19:48 +00:00
Jim Grosbach
5468e0928b
add cmd line option to leave dbgvalues in during post-RA sceduling. Useful
...
while debugging what's mishandled about them in the post-RA pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103805 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:18:04 +00:00
Bill Wendling
d33fa0f9e0
Fix comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:17:29 +00:00
Bill Wendling
b92187a410
Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what
...
the variable actually tracks.
N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103802 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:14:32 +00:00
Devang Patel
552b888744
Test case for r103800.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103801 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:04:45 +00:00
Dan Gohman
71ea4e5b05
Lowering of atomic instructions can result in operands being
...
used more than once. If ISel had put a kill flag on one of them,
it's not valid to transfer the kill flag to each new instance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103799 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:01:44 +00:00
Devang Patel
98e1cac52c
Add support to preserve type info for the variables that are removed by the optimizer.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:01:35 +00:00
Jakob Stoklund Olesen
1b2c761a9c
When verifying two-address instructions, check the following:
...
- Kill is implicit when use and def registers are identical.
- Only virtual registers can differ.
Add a -verify-fast-regalloc to run the verifier before the fast allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 20:28:32 +00:00
Kevin Enderby
c3ce05c594
Fix so "int3" is correctly accepted, added "into" and fixed "int" with an
...
argument, like "int $4", to not get an Assertion error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 19:16:02 +00:00
Evan Cheng
5c6aba2e3a
Model VLD*_UPD and VLD*odd_UPD pair with REG_SEQUENCE.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103790 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 18:54:59 +00:00
Daniel Dunbar
f0f6cdb6b4
MC/Mach-O/x86_64: Darwin's special "signed_N" relocation types should only be
...
used to replace a normal relocation, not a reference to a GOT entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 18:53:40 +00:00
Jakob Stoklund Olesen
4ed1082683
Simplify the handling of physreg defs and uses in RegAllocFast.
...
This adds extra security against using clobbered physregs, and it adds kill
markers to physreg uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103784 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 18:03:25 +00:00
Dan Gohman
effc8c5269
Set isTerminator on TRAP instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103778 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 16:46:02 +00:00
Dan Gohman
c0c32ae5c2
Don't use isBarrier for the PowerPC sync instruction. isBarrier is for
...
control barriers, not memory ordering barriers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103777 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 16:42:16 +00:00
Dan Gohman
7f357ec6d2
Add mayLoad and mayStore flags to instructions which missed them.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 16:34:55 +00:00
Dan Gohman
9cc1c18b7b
Use regular PassManager instead of FunctionPassManager in opt, since it
...
isn't doing lazy streaming. This also fixes a missing doFinalization call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103774 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 15:36:54 +00:00
Dan Gohman
8090e214f7
Use PassManagerBase, to give clients the option of using either
...
FunctionPassManager or regular PassManager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103773 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 15:35:10 +00:00
Dan Gohman
89938ce0ad
Add an isNodeHidden to the graph traits, to support definition of
...
subgraph views.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 15:29:31 +00:00
Daniel Dunbar
bd616b69f7
XFAIL the test I added with vg_leak, apparently it is the first and only llc
...
-filetype=obj test, and -filetype=obj leaks a few objects. Added a FIXME, we
need to sort out the ownership model for the various MC objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103769 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 07:47:51 +00:00
Evan Cheng
0ebf356ddf
Get rid of the bit twiddling to read / set OpActions and ValueTypeActions. The small saving in memory isn't worth the increase in runtime and code complexity in my opinion.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103768 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 07:37:40 +00:00
Daniel Dunbar
d11d59e35a
Inline Asm: Ensure buffer is newline terminated to match how the text is printed.
...
- This is a hack, but I can't decide the best place to handle this. Chris?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 04:31:50 +00:00
Jakob Stoklund Olesen
7ff82e1501
Enable opportunistic coalescing
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103764 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 04:30:51 +00:00
Evan Cheng
22c687b642
Added a QQQQ register file to model 4-consecutive Q registers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 02:13:41 +00:00
Eric Christopher
482eba054a
Add AsmParser support for darwin tbss directive.
...
Nothing uses this yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 01:50:28 +00:00
Eric Christopher
c260a3e59a
Fix a couple of typos.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103756 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 01:38:54 +00:00
Nick Lewycky
3fa0c8ca96
Fix typo.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 01:02:48 +00:00
Daniel Dunbar
47b3ec4daa
MC: Switch to completely lazy layout.
...
- The eliminates the last major algorithmic problem with MC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103754 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:51:14 +00:00
Daniel Dunbar
9005d45a99
MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:37:21 +00:00
Daniel Dunbar
11c4111516
MC: Implicitly assign section addresses when the previous fragment is layed out.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:37:17 +00:00
Daniel Dunbar
337718e09c
MC: Switch MCFragment to storing the layout order index, not its index in the file.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103751 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:37:14 +00:00
Daniel Dunbar
afc6acdab7
MC: Change LayoutSection() to only do the section initializiation.
...
Also, elimminate MCAsmLayout::set*, which are no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:37:11 +00:00
Evan Cheng
7f68719517
Fix comments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103749 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:21:45 +00:00
Jakob Stoklund Olesen
57b6076d34
Trust kill flags from isel and later passes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103748 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:02:23 +00:00
Jakob Stoklund Olesen
7d4f25904d
Fix an embarrassing runtime regression for RegAllocFast.
...
This loop is quadratic in the capacity for a DenseMap:
while(!map.empty())
map.erase(map.begin());
Instead we now do a normal begin() - end() iteration followed by map.clear().
That also has the nice sideeffect of shrinking the map capacity on demand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 00:02:20 +00:00
Evan Cheng
dbf67fefea
Adding a v8i64 512-bit vector type. This will be used to model ARM NEON intrinsics which translate into a pair of vld / vst instructions that can load / store 8 consecutive 64-bit (D) registers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13 23:55:47 +00:00